Improvement in the manufacture of iron



UNITED STATES PATENT OFFICE.

JOHN D. WILLIAMS, ALLEGHENY CITY, PENNSYLVANIA.

llVlPROVEMENT IN THE MANUFACTURE OF IRON.

Specification forming part of Letters Patent No. 49,331, dated Augnstfi, 1865; antedated July 9,- 1365.

i To all whom it may concern.-

of Pennsylvania, have invented a new processin Manufacturing Iron; and I do hereby de-. clare that the following is afull and exact description thereof. t

The nature of my invention consists in the use of sulphuric acid, salt, borax, saltpeter, and lime, compounded and used in the manner substantially as hereinafter described.

1 use the ordinary boiling or puddling furnace, making the depth from the fore plate to the bottom plate about two inches more than that of the ordinary furnace. I charge the furnace and melt the metal in the usual manner. After the charge is melted down, (ach arge being about four hundred and eighty pounds,) I then take about one pound of sulphuric acid and dilute it in about a pint of warm water. I also take about eight ounces of common salt, three ounces of borax, two ounces of saltpeter, and six ounces of slaked lime. Each of these I dissolve in about a pint of warm water, after which I put all these mixtures into about three ing and working the iron in the manner herein described a better and astronger article is obtained. 4

Having thus described my process in the r" manufacture of iron, what I claim as of my invention is-- vThe use of the ingredients herein named,

when used in the manufactureof iron, said ingredients being used substantially in the manner herein described, and for the purpose set forth.

JOHN D. \VILLIAMS'.

Witnesses:

JAMES J. JOHNSTON, ALEXANDER HA-rs. 

